Inside the mind of Citadel's Ken Griffin

Jose M. Osorio/Tribune

"I was really proud to support Rahm. He is really one of the brightest men I've ever spent time with. And I've known Rahm for maybe 15 years. I believe our city and our state has some real challenges ahead of it, whether it's educating our children, whether it's dealing with the fiscal irresponsibility of past leaders."

"I was really proud to support Rahm. He is really one of the brightest men I've ever spent time with. And I've known Rahm for maybe 15 years. I believe our city and our state has some real challenges ahead of it, whether it's educating our children, whether it's dealing with the fiscal irresponsibility of past leaders." (Jose M. Osorio/Tribune)